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A Single Molecule of Water Encapsulated in Fullerene C60
The structure of H2O@C60 was determined by single-crystal x-ray analysis, along with its physical and spectroscopic properties, and the relatively simple method was developed to close the cage and encapsulate water. Expand
Purely organic electroluminescent material realizing 100% conversion from electricity to light
A thermally activated delayed fluorescence material for organic light-emitting diodes is shown, which realizes both approximately 100% photoluminescence quantum yield and Approximately 100% up-conversion of the triplet to singlet excited state. Expand
Triarylboron-Based Fluorescent Organic Light-Emitting Diodes with External Quantum Efficiencies Exceeding 20 .
New donor-acceptor triarylboron emitters that show thermally activated delayed fluorescence and high photoluminescence quantum yields of 87-100 % in host matrices are designed and synthesized. Expand
Encapsulation of Molecular Hydrogen in Fullerene C60 by Organic Synthesis
A four-step organic reaction that completely closes a 13-membered ring orifice of an open-cage fullerene is reported that can be used to synthesize a fullerenes C60 encapsulating molecular hydrogen, which can be isolated as a pure product. Expand
A Kinetic Study on the Rate Retardation in Radical Polymerization of Styrene with Addition−Fragmentation Chain Transfer
The polymerization of styrene mediated by a polystyryl dithiobenzoate was studied by electron spin resonance spectroscopy to determine the concentration of the intermediate radical produced by theExpand
Synthesis and X-ray structure of dumb-bell-shaped C120
The discovery and large-scale synthesis of fullerenes have aroused interdisciplinary interest in these closed-cage molecules. C60 can be photopolymerized into a form in which the cages are thought toExpand
Dynamic Optical Properties of CH₃NH₃PbI₃ Single Crystals As Revealed by One- and Two-Photon Excited Photoluminescence Measurements.
The dynamic optical properties of perovskite CH3NH3PbI3 single crystals were studied by means of time-resolved photoluminescence (PL) spectroscopy and revealed that the PL behaviors can be explained by the diffusion of photocarriers generated in the near-surface region to the interior region. Expand
Reproducible Fabrication of Efficient Perovskite-based Solar Cells: X-ray Crystallographic Studies on the Formation of CH3NH3PbI3 Layers
Lead halide complexes formed during the fabrication of perovskite (CH3NH3PbI3)-based solar cells were examined by single-crystal X-ray diffraction analysis. Based on the observed results, the fabri...
Quantum rotation of ortho and para-water encapsulated in a fullerene cage
Investigation of the quantized rotation and ortho–para conversion of single water molecules trapped inside closed fullerene cages reveals that the ground state of encapsulated ortho water has a lifted degeneracy, associated with symmetry-breaking of the water environment. Expand
Synthesis and reaction of fullerene C70 encapsulating two molecules of H2.
New endohedral fullerene C(70) encapsulating one and two H(2) molecule(s) has been synthesized by organic reactions, the so-called "molecular surgery" method, and the first organic derivatization ofExpand